Morrow Point Dam and reservoir are part of the Bureau of Reclamation's Wayne N. Aspinall Unit of the Colorado River Storage Project, which retains the waters of the Colorado River and its tributaries for agricultural and municipal use in the American Southwest.

[3] The dam, powerplant and reservoir are contained in pre-Cambrian metamorphic rocks, primarily micaceous quartzite, quartz-mica, mica and biotite schists, with granitic veining.

The spillway discharge falls 350 feet (110 m) into a stilling basin whose waters are retained by a weir below the dam.

[4] A streamflow of 100 cubic feet per second (2.8 m3/s) is maintained at all times, equivalent to 200 acre-feet (0.00025 km3) per day.

The diversion tunnel was closed on January 24, 1968, with releases through the outlet structures the next day.

Final completion was achieved for the dam on October 7, 1968, while work continued on the powerplant.

An access tunnel intersects the generating hall at a right angle, with two draft tubes excavated below.